Other Long-Term Liabilities (Schedule of Other Long-Term Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Other Liabilities Disclosure [Abstract]
Long-term deferred compensation arrangements	$ 14.0	$ 15.3
Environmental liabilities	11.7	13.5
Fair value of derivative liabilities	6.1	0.2
Other	6.2	6.5
Total other long-term liabilities	$ 38.0	$ 35.5

Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable after twelve months or beyond the next operating cycle if longer.

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-Publisher FASB
-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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-SubTopic 20
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Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements payable beyond one year (or the operating cycle, if longer).

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